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James McLean is issued a patent for a piano.
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| Number | Title | Issue Date |
| 4581983 | Piston for internal combustion engines In a cooled composite piston having a cooling passage adjacent to the interface and a method of making same, the upper part consists of forged steel and is formed on its underside with ribs bearing on mating surfaces of the lower part. To improve the resi... | 04/15/1986 |
| 4562327 | Piston and process of providing wear-resisting surfaces in the ring grooves of an aluminum alloy combustion engine piston An arc welding process is used for form wear-resistant surfaces at least in the uppermost ring groove of aluminum alloy pistons for internal combustion engines. To reduce the manufacturing costs and to avoid an increase of the weight of the piston, the pi... | 12/31/1985 |
| 4510821 | Device for making a firm, but releasable joint between a steering wheel and a locking bolt A device is provided for making a firm but releasable joint between a steering wheel which is connected to the steering column and a locking bolt that is movable by means of a lock cylinder. In order to provide between the hub of the steering hub and the locki... | 04/16/1985 |
| 4495684 | Process of joining a ceramic insert which is adapted to be embedded in a light metal casting for use in internal combustion engines Ceramic inserts are embedded in thermally highly loaded zones and/or as a heat insulation in light metal castings for use in internal combustion engines. To provide a firm joint between the insert and the light metal, a metallic material which resists cre... | 01/29/1985 |
| 4448091 | Single-spoke steering wheel In a steering wheel covered with a layer of plastic material, the steering wheel hub is connected to the steering wheel rim by a steering wheel spoke. To reduce the manufacture expenditure, the spoke is embedded in the steering wheel hub consisting of an ... | 05/15/1984 |
| 4394275 | Composite material for sliding surface bearings A composite material for sliding surface bearings comprises a gacking shell of steel, which is covered by a bearing metal layer of sintered porour bronze having a porosity of 25 to 45%. The voids of the bronze layer are filled with a fluorocarbon-lead mix... | 07/19/1983 |
| 4375782 | Composite piston for internal combustion engines A composite piston for internal combustion engines having a lower part and an upper part composed of ferrous material and joined together by a centering screw-threaded ring, is provided with the screw-threaded ring which comprises internal screw threads a... | 03/08/1983 |
| 4368697 | Liquid-cooled piston for internal combustion engines In a composite, liquid-cooled piston, the upper part consists of ferrous material and is joined by conventional means to the lower part. A ring is provided on the underside of the upper part which bears on the corresponding surface of the lower part and c... | 01/18/1983 |
| 4356800 | Liquid-cooled, composite piston for internal-combustion engines In a liquid-cooled, composite piston for internal-combustion engines, particularly for medium-speed diesel engines, comprising a lower part, which made of a material comprising an eutectic aluminum-silicon alloy which lower part is connected to an upper p... | 11/02/1982 |
| 4354426 | Expansion-controlled light alloy piston To provide for separate expansion control actions at the top and bottom edges of the skirt of an expansion-controlled light alloy piston, to prevent a direct propagation of deformation between the top and bottom edges of the skirt and to reduce the skirt ... | 10/19/1982 |
| 4353266 | Motor vehicle steering wheel comprising a deformable member A motor-vehicle steering wheel has a rim, spokes and a deformable member, which occupies part of a bowl space and lies on a recessed hub of the steering wheel. In order to increase the passive safety, the rim of the steering wheel, the outside periphery o... | 10/12/1982 |
| 4345138 | Process of shaping the rim of a combustion chamber recess of a light-alloy piston An improved process for shaping the edge of a combustion chamber recess in the piston head of a finish-machined light-alloy piston is disclosed wherein the piston is moved past the oscillating charged carrier beam at an angle of inclination of 40° to 50Â... | 08/17/1982 |
| 4274372 | Lightweight piston for internal combustion engines In a cast light-alloy piston having a skirt which is recessed adjacent to the piston pin bosses, the two sides of the skirt are unsymmetrical with respect to the piston pin bosses. For an improved adaptation to the different conditions of operation of the ... | 06/23/1981 |
| 4262551 | Safety steering wheel for motor vehicles An improvement in a bowl-shaped steering wheel for a motor vehicle which steering wheel comprises a rim and a hub, the improvement residing in a deformable body disposed between said rim and said hub, said deformable body being a knitted metal wire which ... | 04/21/1981 |
| 4221403 | Three-point safety belt Disclosed is an improved three-point safety belt for use in an automobile having a body containing a door where the three-point safety belt is secured at one end to the body and at the other end to a region of the body proximate the door. The three-point ... | 09/09/1980 |
| 4200309 | Safety steering wheel for motor vehicles A steering wheel for motor vehicles comprises a rim, a hub recessed from the rim and spokes connecting the rim to the hub. A deformable box-shaped member is connected to the spokes and disposed between the hub and the rim of the steering wheel for deformi... | 04/29/1980 |
| 4175502 | Liquid-cooled, assembled piston for internal combustion engines In a liquid cooled, assembled piston for an internal combustion engine which has a lower piston part, an upper piston part connected thereto, an annular cooling passage disposed in the upper piston part behind the top land and at least part of the ring-ca... | 11/27/1979 |
| 4138984 | Light alloy piston for diesel engines A light alloy piston for diesel engines includes a piston head coated with a hard annodized layer having a combustion chamber recess and/or a fuel-guiding channel provided adjacent to the edge of the combustion chamber recess and/or valve pockets. The pis... | 02/13/1979 |
| 4135479 | Piston and cylinder for two-cycle engines A piston and cylinder for two-cycle engines wherein the fuel-air mixture is precompressed in the crankcase and flows to the combustion chamber through transfer passages formed in the cylinder wall and under the control of the piston movement. The piston s... | 01/23/1979 |
| 4075934 | Piston for internal combustion engines A piston for internal combustion engines, preferably made from aluminum alloy, has machined, oil-dragging grooves formed on the periphery of the piston skirt and concave transitions with a sawtoothlike profile with an obtuse profile angle. The piston skir... | 02/28/1978 |
| 4063789 | Signalling arrangement for automotive vehicle steering wheels The hub of a vehicle steering wheel is provided with signaling contacts one of which is connected to a source of electric current through a connector which comprises an upwardly and downwardly movable conductor whose end remote from the contacts is anchor... | 12/20/1977 |
| 4061182 | Low-pressure casting apparatus Low-pressure casting apparatus is disclosed and includes a holding furnace having a cover, an ingot mold positioned on top of the furnace cover, a riser pipe connecting the holding furnace with the interior of the mold, upright tension rods to vertically ... | 12/06/1977 |
| 4047471 | Locking means for piston pin Locking means for a piston pin is loosely mounted in the bosses of a piston and which piston is larger in outside diameter than the external distance between the bosses. At least one angled locking pin having one arm secured in the boss and extending appr... | 09/13/1977 |
| 3995680 | Method of cooling piston blank molds Chill mold for casting piston blanks, e.g. for internal combustion engines, from metals such as aluminum alloys, includes a steel cylinder, an inner core for reproducing the inner contours of a piston, and a spray ring which surrounds the cylinder. The sp... | 12/07/1976 |
| 3991811 | Process for manufacturing a light alloy piston having an annular cooling passage in its head portion A light alloy piston having an annular cooling passage in its head portion is prepared by a process wherein a permanent mold, preferably having a steel shell and a water cooled bottom, is filled with the molten piston alloy. Thereafter, core elements, par... | 11/16/1976 |
